/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.nifi.util;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.apache.nifi.registry.VariableDescriptor;
import org.apache.nifi.registry.VariableRegistry;

public class MockVariableRegistry implements VariableRegistry {

    private final Map<VariableDescriptor, String> variables = new HashMap<>();

    @Override
    public Map<VariableDescriptor, String> getVariableMap() {
        return Collections.unmodifiableMap(variables);
    }

    public void setVariable(final VariableDescriptor descriptor, final String value) {
        variables.put(descriptor, value);
    }

    public String removeVariable(final VariableDescriptor descriptor) {
        return variables.remove(descriptor);
    }
}
